2017­2­2 multiply polynomials.notebook
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2/2
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-Text Section 7.2
pgs. 369-370 # 3-43 odd
-Quiz Monday 2/6
HW Answers
February 02, 2017
2017­2­2 multiply polynomials.notebook
February 02, 2017
:Multiplying Polynomials
Today's Objective
2017­2­2 multiply polynomials.notebook
February 02, 2017
Multiplying Polynomials
Multiplying Monomials:
1) Multiply coefficients
2) Multiply variables by adding exponents
(2x)(7x) = (­3x4)(6x8) = (10y­2)(9y3) = (5x2)(6xy3) = Multiplying a Monomial by a Polynomial
Use the Distributive Property!
3y(y4 + 5y3 ­ 6y)
­5x(x2 ­ 2x + 4)
2017­2­2 multiply polynomials.notebook
February 02, 2017
Multiplying a Binomial by a Binomial
Using the Distributive Property (x + 3)(x + 2)
(2x − 3)(x + 5)
Multiply the following polynomials:
(x + 5)(x + 7)
(x ­ 6)(x ­3)
2017­2­2 multiply polynomials.notebook
February 02, 2017
Multiply two binomials with FOIL
Find each product.
a. (x − 3)(x − 6) b. (2x + 1)(3x − 5)
2017­2­2 multiply polynomials.notebook
February 02, 2017
Multiplying a Trinomial and a Binomial
Using a table
(x + 5)(x2 − 3x − 2).
Find the product of the polynomials.
(x + 1)(x2 + 5x + 8)
(n − 3)(n2 − 2n + 4)
2017­2­2 multiply polynomials.notebook
In hockey, a goalie behind the goal line can only play a puck in the trapezoidal region.
a. Write a polynomial that represents the area of the trapezoidal region.
A=
b. Find the area of the trapezoidal region when the shorter base is 18 feet.
February 02, 2017
2017­2­2 multiply polynomials.notebook
February 02, 2017